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WO/2004/042263A2 |
A threaded pipe connection (11) is shown which features a cylindrical metal-to-metal containment seal (13). In addition to the cylindrical sealing surfaces, the connection utilizes a separate ramp or ramp regions (59) that simulate a pin...
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WO/2004/040184A1 |
A coupled version of a threaded connection (10) includes first threads (16, 38) and second threads, (20, 34) on both elongate tubulars (14, 30) and a coupling (45). An integral joint version (50) preferably includes a first and second ta...
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WO/2004/033951A1 |
A threaded metallic pipe for oil extraction industry has a threaded end portion with treated surface in which the metal surface has a roughness (Ra) comprised of 2,0 µm and 6,0 µm, which is covered by a uniform layer (7) of a dry corro...
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WO/2004/023020A1 |
A threaded tube joint for oil extraction industry has a trapezoidal thread and a toroidal sealing surface (11) placed at its end near the thread and engages, for sealing, a corresponding frusto-conical sealing surface (12) wherein the to...
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WO/2004/020889A1 |
The invention relates to a tubular joint comprising a conical male thread (3) and a conical female thread (4). According to the invention, an annular housing (20) is disposed close the free end (14) of the female element (2) and is used ...
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WO/2004/015323A1 |
A threaded pin (11) and box (12) pipe connection having makeup shoulders (15, 16) that contact when the pin and box threads are fully engaged. Upon initial engagement of the shoulders, load flanks (36, 31) of the pin and box threads furt...
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WO/2004/013531A1 |
The invention relates to a coupling for anchor bolts, comprising a sleeve (1) having an internal screw thread (5) and two anchor pipes (2) having an external screw thread (3), the ends (8) of said pipes being screwed into the sleeve (1)....
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WO/2004/010163A1 |
An improved method of permanantly marking the location of a tubular joint comprises creating a cavity (3) into the end surface of one of the tubular ends that are to be joined by a forge weld or screw thread connection, inserting a marke...
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WO/2004/005665A2 |
An expandable coupling arrangement for coupling first and second tubulars includes a male thread portion on an end of the first tubular and a female thread portion on an end of the second tubular. The thread portions comprise dovetail th...
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WO2003090841B1 |
A connector (30), usable to securely couple first and second tubular devices to one another, includes first and second fittings (22, 24) cooperating with the first and second tubular devices, respectively. The second fitting (24) include...
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WO/2004/003417A1 |
The invention relates to a pipe system comprising pipe elements (3) which are interconnected in a row. At the connection point (10) between two successive pipe elements (3), the first pipe element (3) which has an axial push-in end secti...
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WO/2004/003327A2 |
The present invention provides a connector arrangement for connecting a first tubular to a second tubular. In particular, the present invention relates to a method for connecting tubulars in such a way that the connection is prevented fr...
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WO/2004/003416A1 |
The invention concerns a high-performance threaded tubular joint comprising a first male tubular element (11) and a second female tubular element (12) mutually screwed together. One of the tubular elements (11, 12) comprises an unthreade...
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WO/2004/001181A1 |
An expandable threaded connection between segments of expandable tubulars provides multiple sealing points along the pin and box members (10, 20) that can withstand high pressure. A gap (a) is utilized that is created between the pin nos...
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WO/2004/001266A2 |
A fluid connector, comprising a shaft (22) having at least one solid shaft element and a plurality of connector surfaces, wherein the plurality of connector surfaces includes a surface with a plurality of threads (40) and a plurality of ...
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WO/2003/106807A1 |
The invention relates to a threaded connection for two pipes or similar, consisting of one pipe end (1) comprising an external thread with at least two threaded sections that are separate from one another and one end of a second pipe (2)...
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WO/2003/104704A1 |
A method and apparatus is disclosed for providing an expandable threaded connection between segments of expandable tubulars is disclosed. Threaded connections are machined into pre-expanded ends (10, 20) of tubulars. Once the threaded co...
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WO/2003/104705A1 |
A method and a device for the surface treatment of a metal tube (3), the method comprising the steps of leading treating liquid (2) into a first distribution container (11) with a flat bottom face and dropping the treating liquid to at l...
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WO/2003/102457A1 |
A screw joint for steel pipe, comprising pin (1) provided with a contact surface, which has screw portion (3) or (4) and nonthreaded metal contact portion (8), and box (2), wherein a lubricant coating exhibiting self-repair capability th...
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WO/2003/102456A1 |
A nut and tail assembly (10) and method of manufacture including a nut (12) having a first end and an inward flange (24) at the other end, a longitudinal cylindrical hollow body (14) having a first end and a second end at which is locate...
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WO/2003/098087A1 |
Tubular goods and tubular good liners which decrease or eliminate friction and mechanicial wear and decrease or eliminate chemical corrosion to the walls of the tubular good. The tubular good (100) comprises outer layer (110), diffusion ...
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WO/2003/098089A1 |
Threaded pipe joint comprising a male element (1) and a female element (2), threaded and provided with respective complementary sealing surfaces, which define, when screwed together, a notch (13) formed on the female element (2) of a pre...
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WO/2003/093716A1 |
Threaded joint for pipes consisting of a male member (1) and a female member (2), which are provided on the outer. and inner surfaces respectively with two threading portions .presenting a lead-in flank ß such that 10° <, ß < 25°, an...
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WO/2003/093714A2 |
The liner assembly (10) is for use in a joint between two pipe segments. The assembly (10) includes a first ring member (50), a second ring member (60) and a corrosion barrier ring (70). The first ring member (50) is configured to cooper...
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WO/2003/089162A2 |
A threaded connection for a conduit is disclosed. The connection includes a male member having threads on it defining a load flank lead (14), a stab flank lead (12) and a nominal lead (10). A female member has threads thereon adapted to ...
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WO/2003/089754A1 |
This invention refers to a threaded joint, provided with metallic sealing, for pipes used especially in oil and gas extractive industry. Threaded joint, according to the first example, consist of a pipe (1), of which end, called pin (2),...
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WO/2003/087645A1 |
The invention relates to a sealing device (1) for a high-pressure sealing of line junctions. The sealing device (1) comprises a cutting edge (2) and a protective edge (3). The cutting edge (2) permits a sealing of the line junction by me...
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WO/2003/085305A2 |
A threaded pipe connector (60) having a replaceable seal member (70). The tapered pin nose seal area of a high-pressure drill pipe tool joint is provided with an annular corrosion resistant element (70) that is formed separately from the...
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WO/2003/078882A1 |
A threaded pipe connection (1) having box and pin members (20, 10) is provided with inner engageable thread means on the box and pin members (20, 10), the thread means including a helical dove−tail thread (22, 12) having negative flank...
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WO/2003/076758A2 |
The oilfield tubular pin and box connection includes double shoulders (16, 22). An inner sleeve (18) engages the box at shoulder (20), and provides one of the two shoulders (16, 22) for engaging the pin. The pin bore optionally may be pr...
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WO/2003/076837A2 |
A threaded pipe connection for assembly with the use of thread dope, having a box (2) and pin (1) formed with tapered mating wedgethreads, the box threads having crests (21), roots (8), stab flanks (4) and load flanks (6), the pin thread...
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WO/2003/074917A1 |
A pipe system for transport of corrosive fluids, such as crude oil or natural gas, comprises a corrosion−prone tubular member (1) which is coated with an inner corrosion−resistant lining (3). The tubular member (1) and inner lining (...
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WO/2003/071088A1 |
According to the present invention a thread joint of steel for percussive drilling is provided where flushing water is used, comprising at least one external thread (14) as well as an internal thread (12). The thread (16) comprises threa...
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WO/2003/059549A1 |
A tubular sleeve (16) is coupled to and overlaps the threaded connection between a pair of adjacent tubular members (10,28).
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WO/2003/060198A1 |
A tubular member (12) having an internal and/or external metal thread (18, 20) at one end thereof, at least part of the thread (18, 20) being coated with an alloy of copper and tin, said alloy containing 5 wt% to 95 wt% copper. The tubul...
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WO2002065012A9 |
The invention concerns a tubular threaded joint comprising two male and female threaded elements one screwed into the other with a specific torque wherein at least one thread surface under contact pressure (125) has prior to being screwe...
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WO/2003/060370A1 |
The invention concerns a tubular joint wherein the radial expansion caused by the passage of an expander, inclined shoulder fittings (41, 43) formed respectively on a peripheral surface (8) of the female element (2) facing radially inwar...
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WO/2003/060369A1 |
The invention concerns a tubular joint for hydrocarbon wells comprising a male tubular element (1) and a female tubular element (2) including respective sealing surfaces (7, 8) designed to be urged into sealed mutual contact after slidin...
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WO2001029475A9 |
A threaded pipe connection (15) formed with open type wedgethreads that can: seal high pressure liquid or gas; provide selectively, up to full pipe strength; assures repeated makeup to the desired position of full makeup within a wide to...
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WO/2003/048623A1 |
The invention concerns a premium tubular threaded joint comprising at least on a threaded element a free-end abutting distal surface (7) of a threaded element and a seat on the lip (5) spaced apart by a given distance from the threading....
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WO/2003/048505A1 |
ABSTRACT A wellbore assembly is provided that is operable in wellbores in the range of six to six and one-half inches for obtaining large diameter cores, e.g., cores greater than or equal to two and seven-eighths inches in diameter. The ...
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WO/2003/036017A1 |
The present invention provides a connector arrangement for connecting and locking tubular members. The connector consists of two tubular members (100, 110) and a coupling member. The tubular members are threaded together to create a thre...
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WO/2003/014612A1 |
Pipes (2, 3) made of a difficult−to−weld material to be used at a high temperature are internally (3a) or externally (2a) threaded at their end portions, and are thread−fastened to each other. The inner and&sol or outer faces of th...
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WO/2003/010460A1 |
A metal−sealable threaded joint for steel tube capable of being tightened and loosened repeatedly without applying liquid lubricant containing heavy metal powder thereon, comprising a pin and a box each having a contact surface contain...
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WO/2003/006867A1 |
A thread joint capable of economically imparting effective sealability to a metal surface contact seal section and preventing seizure during fastening is composed by fastening a steel pipe (1) having a male thread (1b) at an end and a no...
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WO/2002/101266A1 |
A metal packing (1) used to seal a connection part between a steam pipe (50a) and a steam pipe (50b), comprising an annular base part (3) having an opening part (2) for communicating the hole parts (51, 54) of the steam pipes (50a, 50b) ...
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WO/2002/099327A1 |
A joint for high pressure fluid having a long lifetime in which high pressure slurry and wear at the coupling part can be dealt with easily. The joint comprises a pipe (11) having an inverse external thread (11c) in the vicinity of the f...
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WO/2002/095216A1 |
The invention relates to a high pressure connection device with a housing (1), in which an inlet channel (9) running into the housing (1) opens out. A pressure tube fitting (15), in which a high pressure channel (22) is formed and which ...
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WO/2002/090810A2 |
An apparatus, system, and method of axially joining a first (4) and second (5) member having externally threaded ends (9, 20) without having to turn either member (4, 5). The set of external threads (9, 20) of the first (4) and second (5...
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WO/2002/090809A2 |
This invention is a method and apparatus for making a pressure-containing threaded tubular connection, suitable for remotely operated connection and separation, utilizing electrical heating to reduce the amount of makeup torque required ...
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